Estudio geotécnico in Martín de la Jara

In Martín de la Jara, sandstone, conglomerate and flysch materials predominate, which constitute more than 69% of the geotechnical substrate. In general, these soil types show an adequate bearing capacity for supporting shallow foundations, although local variations may exist associated with the presence of fine sands, silts and even occasional levels of limestones and dolomites. The low permeability of the overall ground limits infiltration, which can favour foundation settlement, while the possible existence of superficial aquifers implies that the control of the groundwater table should be made particularly rigorous during the execution phase.

Seismic activity in the area is moderate, with 13 recorded events in the last three decades and a maximum magnitude of less than 4, which reduces, although it does not eliminate, the need to consider seismic actions in structural design. It is essential to verify the existence of karst phenomena due to the occasional presence of limestones and dolomites, as these can generate hidden cavities of particular relevance to foundation stability. Once the risk of expansiveness has been ruled out due to the absence of predominant clayey soils, the main geotechnical constraint will be the possible presence of karst and the correct characterisation of the variability in lithology.